 Allegro’s ACS756 is a low noise, open-loop current sensor with a 125 kHz bandwidth capability. The enhanced accuracy and speed make this device suitable for a variety of 50 A to 100 A applications. This new device takes advantage of the low loss leadframe of our “CA” package and the fast response capability of an integrated core.
Allegro’s new ACS756 also has an internal electrostatic shield. The electrostatic shield shunts the effects of voltage transient spikes around the silicon and minimizes the voltage ripple on the output of the device. The result is a high performance current sensing solution suitable for motor and inverter control, power supply control and protection, and other applications requiring high side current sensing.
The ACS756 series of parts combines the best features of the previous generations of Allegro current sensors.
The improvements are as follows:
- Faster response time than ACS752 series
- Propagation delay ~ 1.6 µS
- Noise performance is better than ACS75x devices
- Noise measured at less than 9 mVpp
- Accuracy over temperature better than ACS754
- Improved technology minimizes drift over temperature
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